Affordable Care Act

The ACA MarketplaceS

Individual Market Enrollment Declined by 18% Since June 2025

Individual Market Enrollment Fell 18%, Suggesting Continued ACA Marketplace Losses

Enrollment in the individual health insurance market fell by 18%—over 4.6 million people—from 25.2 million in June 2025 to 20.5 million in June 2026. Falling individual market enrollment suggests further decline in ACA Marketplace enrollment this year, since Marketplace enrollees represent the vast majority of individual market coverage.

About the ACA

Promotional image for KFF video How Affordable is the Affordable Care Act

Did the Affordable Care Act Make Health Care More Affordable?

The expiration of the ACA’s enhanced premium tax credits at the start of 2026, combined with rising insurer premiums, put a spotlight on health care affordability that extends beyond Marketplace enrollees. KFF’s Cynthia Cox examines the ACA’s record and the broader underlying question it raises: what’s a fair price for Americans people to pay for health care?

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  • The Role Of Health Care In The 2020 Election

    Interactive

    This interactive map highlights what voters from the 2020 general election and Democratic primary voters said about health care as they vote, based on KFF's analysis of the state-level AP VoteCast data collected in most states. The primary election data also includes state-specific charts highlighting where health care ranks as issue, views about a single-payer health plan and a public option, and other health care findings from the AP VoteCast data with key demographic breakouts.

  • Partying Spring Breakers Don’t Represent Most of America’s Young Adults

    Policy Watch

    While news stories accurately depict the actions of some young people on spring break, our latest national poll show they are not representative of young adults more broadly who largely say they are engaging in social distancing practices in response to the coronavirus pandemic.

  • American Health Care Act (AHCA) Quiz

    Feature

    On May 4, 2017, the US House of Representatives approved the American Health Care Act (AHCA), legislation to repeal and replace the Affordable Care Act (ACA).  On May 24, the Congressional Budget Office scored the latest version of this bill. Do you think you’re an expert on the AHCA?  Take this quiz to test your knowledge.

  • 5 Million More Older Americans Would Become Uninsured under the House GOP Health Bill, and Many with Coverage Would Pay Steep Increases in Premiums 

    News Release

    As a group, older Americans are likely to see some of the biggest changes in their health insurance under the House-passed American Health Care Act (AHCA). The Congressional Budget Office projects that the number of 50- to 64-year-olds who are uninsured would rise to 10 million in 2026, about 5.1 million more than the number who would be uninsured under current law. Many of those who do have coverage would see steep increases in premiums…

  • Premiums under the Senate Better Care Reconciliation Act

    Issue Brief

    This analysis provides estimates of how premiums, after taking into account tax credits, would differ in 2020 under the Senate's Better Care Reconciliation Act (BCRA) vs. the Affordable Care Act (ACA) for people currently enrolled in the federal and state insurance marketplaces.

  • Kaiser Health Tracking Poll: February 2016

    Feature

    The February Kaiser Health Tracking Poll finds Americans are divided on possible changes to the current health care system with 36 percent of Americans saying policymakers should build on the existing law to improve affordability and access to care, 16 percent saying they would like to see the health care law repealed and not replaced, 13 percent saying the current law should be repealed and replaced with a Republican-sponsored alternative, and 24 percent saying the…

  • Uncompensated Hospital Care Fell by $6 Billion Nationally in 2014, Primarily in Medicaid Expansion States; However Many Hospitals Worry About Future Changes in Medicaid Supplemental Payments

    News Release

    The Affordable Care Act’s coverage expansions have benefited hospitals financially, helping to produce an overall decline nationwide in uncompensated care from $34.9 billion to $28.9 billion in 2014, according to a new analysis by the Kaiser Family Foundation. Nearly all of the decline occurred in Medicaid expansion states, where uncompensated care costs were $10.8 billion in 2014 – down $5.7 billion, or 35 percent, from 2013, the year before ACA coverage expansions took full effect. The…

  • Proposed Changes to Medicaid Expansion in Kentucky

    Fact Sheet

    On June 22, 2016, Governor Bevin released his proposed Section 1115 demonstration waiver application called Kentucky HEALTH (Helping to Engage and Achieve Long Term Health) as an alternative to the current Medicaid expansion which is being implemented through a state plan amendment according to the terms in the ACA. On July 3, 2017, Kentucky submitted an amendment, proposing several changes, to its pending waiver application to the new Administration. This fact sheet summarizes the proposed…

  • Tracking Section 1332 State Innovation Waivers

    Fact Sheet

    This interactive map shows the status of all Section 1332 waivers requested by states. The Affordable Care Act (ACA) allows states to apply for innovation waivers to alter key ACA requirements in the individual and small group insurance markets and can be used to shore up fragile insurance markets, address unique state insurance market issues, or experiment with alternative models of providing coverage to state residents.